Airtripper's Bowden Extruder V3
by Airtripper, published
#####Extruder Filament Drive Gear Review & Benchmark
![Drive Gear Review & Benchmark](http://airtripper.com/wp-content/uploads/2013/11/mk8-filament-drive-gear-pulley.jpg "Drive Gear Review & Benchmark")
#####Welcome to the Airtripper's Direct Drive Bowden Extruder V3.
A few adjustments have been made to the design to make the extruder easier to set-up and use. Also, tweaks have been made to get a much cleaner 3D Print.
#####More details are on the blog:
Recent Commentsview all
I tried springs from cloths pegs, they where very strong, and they worked well enough for tension.
However, using springs makes it very difficult to fit the idler and makes filament changing very awkward.
I recommend using diesel hose because that is what I have tested, but you could use any sort of soft rubber or silicone mat type. The hose provided good idler tension and the idler could be removed easily to change filament.
I drilled the holes in the tube with 3mm metal drill bit, using a dremel and goggles.
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STL File Content Details
airtripper-extruder-v3.stl Main body only
airtripper-extruder-v3_e_a.stl Extruder and axle
airtripper-extruder-v3_i_s.stl Idler and Strut
airtripper-extruder-v3-all.stl All parts included
airtripper-extruder-v3-axle.stl Axle only
airtripper-extruder-v3-idler.stl Idler only
airtripper-extruder-v3-idler2.stl idler with flange only
airtripper-extruder-v3-strut.stl strut only
Full parts list and assembly instructions are here:
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